If you have marketplace listings (LMSKU vs Marketplace SKU ) that you would like to unlink from a product listing, here's how you can do that:
1. Go to the Variant page for a variation listing, or to the Product page for a simple listing, by clicking on the Product SKU on the Manage Listings page, as shown above.
2. On the Actions drop down, you will be able to see see the Unlink Market Listings feature. Click on this.
3. You will be directed to the page below. Here, you can add a new LMSKU and then select which Market Listings you would like to move to it.
4. This will unlink your marketplace SKU. You will have a new Product SKU.
As always, if you have questions, contact Support at Listing Mirror!